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wsgily
壓力與動(dòng)力俱存
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樓主  發(fā)表于: 2011-07-22 13:47
圖片：
圖片：
第一張我要明白為什么SMD82傳送一個(gè)-1給它，有什么特殊含義嗎？我看說(shuō)明范圍沒(méi)有負值傳送的，第二張圖Q0.0的表示拉膜的脈沖輸出口，M0.5是拉膜完成的位，我感覺(jué)看程序是脈沖輸出和完成標志位你同時(shí)動(dòng)作的，難道不是Q0.0脈沖發(fā)完，M0.5才置位嗎？不解，求解釋。
shenyijin
中級電工
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1樓  發(fā)表于: 2011-07-23 18:37
是不是西門(mén)子的編程最難？ 請問(wèn)俠客？

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